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can a set with only one element have mean or median?? or is

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Current Student
Joined: 11 May 2008
Posts: 552
can a set with only one element have mean or median?? or is [#permalink]

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04 Sep 2008, 06:03
can a set with only one element have mean or median??
or is it a that the inherent definition of mean/ median is only for a set of nos.?

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Senior Manager
Joined: 16 Jul 2008
Posts: 285

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04 Sep 2008, 06:05
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Current Student
Joined: 11 May 2008
Posts: 552

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04 Sep 2008, 06:43
these are the basics...
knowing them will make a sea of diff.

some more are
a) 0^0. ??
b) |0| ???
SVP
Joined: 07 Nov 2007
Posts: 1757
Location: New York

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04 Sep 2008, 06:46
arjtryarjtry wrote:
can a set with only one element have mean or median??
or is it a that the inherent definition of mean/ median is only for a set of nos.?

IMO,
why not..

in that case
mean=median=element itself.
standard deviation=0
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GMAT Tutor
Joined: 24 Jun 2008
Posts: 1346

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04 Sep 2008, 07:11
Everyone is correct above- if a set contains only one element, x, then the median and mean are both x. The range and standard deviation are both zero.

And the following are also true:

0^0 is undefined
|0| = 0

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Re: doubt   [#permalink] 04 Sep 2008, 07:11
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can a set with only one element have mean or median?? or is

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